How To Open MP4 Files
MP4 is a digital multimedia format that stores video and audio, as well as other data such as subtitles and still images in one file container. Since it is a compressed file format, it is easily shared and streamed over the Internet.
Download and install your free copy of VLC Media Player.
Run VLC Media Player for use.
Open a folder by clicking the menu Media > Open Folder. Navigate and find the MP4 file you wish to open.
Click Choose Folder. The MP4 file should load.
If it is a movie or TV show, it will display an on-screen menu as it would on a DVD player. Click on the on-screen menu’s Start option to begin playing your media.